:root {
  --bg: #ffffff;
  --fg: #1d2330;
  --muted: #5b6475;
  --line: #e4e7ee;
  --accent: #2d5bd8;
  --chip: #f3f5fa;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12151c;
    --fg: #e7eaf1;
    --muted: #9aa3b5;
    --line: #262b36;
    --accent: #7ea2ff;
    --chip: #1b2029;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.7 -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans KR", sans-serif;
  word-break: keep-all;
}
.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }
header { border-bottom: 1px solid var(--line); }
header .wrap { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--fg); text-decoration: none; }
.brand img { width: 28px; height: 28px; }
nav a { color: var(--muted); text-decoration: none; margin-left: 18px; font-size: 15px; }
nav a:hover { color: var(--fg); }
.hero { padding: 56px 0 32px; }
.hero h1 { font-size: 34px; line-height: 1.35; margin: 0 0 14px; }
.hero p { color: var(--muted); font-size: 18px; margin: 0 0 26px; }
.btn { display: inline-block; background: var(--accent); color: #fff; text-decoration: none; padding: 12px 22px; border-radius: 10px; font-weight: 600; }
.note { display: block; margin-top: 10px; color: var(--muted); font-size: 14px; }
section { padding: 26px 0; border-top: 1px solid var(--line); }
section h2 { font-size: 22px; margin: 0 0 14px; }
.states { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.states li { background: var(--chip); border-radius: 10px; padding: 10px 14px; }
.states b { display: inline-block; min-width: 110px; }
.doc h1 { font-size: 28px; margin: 40px 0 6px; }
.doc .meta { color: var(--muted); margin: 0 0 24px; }
.doc h2 { font-size: 19px; margin: 28px 0 8px; }
.doc ul { padding-left: 20px; }
footer { border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; padding: 22px 0 40px; margin-top: 30px; }
footer a { color: var(--muted); }
@media (max-width: 480px) {
  .hero h1 { font-size: 27px; }
  .hero p { font-size: 16px; }
  nav a { margin-left: 12px; }
  .states b { display: block; }
}